The Labour Party hoped to enlist support from the middle classes by promising not to raise income tax.工党向中产阶级保证不提高所得税，希望以此获得他们的支持。It's time the government came clean about its plans to raise income tax.政府是时候坦白交代增加所得税的计划了。The government has encountered strong opposition to its plans to raise income tax.政府欲提高所得税的方案遭到了强烈反对。